Science and Technology Agency Says It Could Take Weeks or Months Before Normal Business Activities Resume

OTTAWA—The Canadian science and technology agency targeted by an alleged Chinese-backed cyberattack said Thursday it has taken additional steps to protect its internal information, although it could be weeks or months before it is able to resume normal business activities.

In a statement, the Ottawa-based National Research Council of Canada said it has beefed up internal security procedures following the cyberattack, which was disclosed on Tuesday. The council said it was forced to shut down its information-technology...